i3lock: enable strictDeps, structuredAttrs, add versionCheckHook (#520759)

pkgs/by-name/i3/i3lock/package.nix

@@ -16,6 +16,7 @@
   libxkbfile,
   libxcb-util,
   cairo,
+  versionCheckHook,
 }:
 let
   cairo' = cairo.override {
@@ -26,6 +27,9 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "i3lock";
   version = "2.15";
 
+  strictDeps = true;
+  __structuredAttrs = true;
+
   src = fetchFromGitHub {
     owner = "i3";
     repo = "i3lock";
@@ -53,6 +57,9 @@ stdenv.mkDerivation (finalAttrs: {
     libxcb-util
   ];
 
+  nativeInstallCheckInputs = [ versionCheckHook ];
+  doInstallCheck = true;
+
   meta = {
     description = "Simple screen locker like slock";
     longDescription = ''